Rhodovibrin

all-trans-Rhodovibrin

3,4-Dihydrobacteriopurpurin

3,4-Didehydro-1,1',2,2'-tetrahydro-1'-hydroxy-1-methoxy-ψ,ψ-carotene

3',4'-Didehydro-1,1',2,2'-tetrahydro-1-hydroxy-1'-methoxy-ψ,ψ-carotene